Abstract: A turn conveyor system includes a plurality of friction-reducing members disposed along at least the inner edge of the belt to minimize the friction between the belt and the conveyor frame. The members are formed, in whole or in part, from a plastic material having a coefficient of friction of less then 0.2 and may advantageously include raised vee-shaped portions adapted to remove debris from between the belt and the frame.

Abstract: A device for extracting liquid from sludge which uses a perforate conveyor belt to carry the sludge through the device. A portion of the belt carrying the sludge is supported by a grid support system which includes a series of wear support members. These wear support members each have a rigid body member having an insert wear strip slidably mounted on the rigid body member which can easily be removed from the device without disconnecting the body member from the device.

Abstract: A primary conveyor belt cleaner includes an elongated support extending across but spaced from a conveyor belt of width W and includes a stiff guide extending for approximately the full length of the support; a scraper blade of resilient elastomer resin is mounted on the support and engages the conveyor belt surface. The scraper blade has a short base wall removably mounted on the support by a reinforcement that interfits with the guide; the blade has two longer curved side walls, an inner wall concave toward the belt and an outer wall convex away from the belt. The two side walls come together to form a scraping edge. The belt cleaner includes a torsion bias mechanism that resiliently maintains the belt scraping edge in continuous engagement with the belt. Two or more primary cleaners may be incorporated in one system. Flexure of the blade permits passage of a mechanical splice in the belt without appreciable damage to the blade or the splice.

Abstract: Apparatus for cleaning a bath of liquid, in particular a metal-working machine lubricant and/or coolant, by means of a conveyor belt which is fed around a drive roller, driven by a motor, in a chamber of a housing and dips into the bath of liquid, characterized in that the conveyor belt is provided with a stripper having a stripping edge directed oppositely to the direction of rotation of the conveyor belt.

Abstract: A secondary conveyor belt cleaner includes a metal support of length L1 and a metal guide of continuous or intermittent construction; the support extends across a conveyor belt of width W in spaced relation to the belt. A plurality of belt cleaner blades of total length L2 (W.apprxeq.L1.apprxeq.L2) are mounted on the guide by a plurality of metal cantilever support arms, usually forged aluminum, one per blade; on each arm there is a metal reinforcement that fits snugly in a base wall in its blade. Torsion bias acting on the support rotationally urges the blades against the conveyor belt.

Abstract: A cleaning blade holder that has a top and bottom portion. The bottom portion of the blade holder contains a groove into which a protruding rib from the back side surface of the blade fits in order to dummy proof the orientation of the blade and to secure the fit. An alternative bottom portion contains a plurality of nodules along the bottom portion surface that interconnect with apertures in corresponding positions to the nubbins along the length of the blade body. The blade holder holds the blade body in a horizontal position allowing the edges on either side of the blade body to extend from the holder. Each side of the blade body fosters two edges. Rotation of the blade holder produces a new cleaning edge. Two other cleaning edges are produced by reversing the blade body in the holder and rotating the blade holder again between positions one and two.

Abstract: A conveyor belt scraper device has at least one scraper blade which is mounted in an undercut mounting recess in a supporting element. The scraper blade is retained in the undercut recess by inwardly directed flanges defining the opening of the recess. One end of the scraper blade forms a scraper tip and the other end has a substantially complementary shape with respect to the mounting recess and is inserted therein. The long sides of the scraper blade have mounting grooves for holding the inwardly directed flanges. According to the invention, the scraper blade has a longitudinal slot extending from the end surface of the scraper blade through a considerable distance outwards beyond the flanges of the mounting recess towards the scraper tip. A T-shaped stiffening member is inserted in the longitudinal slot for stiffening the scraper blade. The invention also relates to a scraper blade of this design for use in the conveyor belt scraper device.

Abstract: Device to recover paint from belt conveyors passing about drums in spray painting plant. A cylinder parallel to the drums of the belt conveyor is driven to rotate in the same direction as the drum and is pressed against an outer surface of the belt so that the adjacent surfaces of the cylinder and of the belt move opposite to each other. The cylinder has a smooth and hard surface and is positioned close to the lower surface of the downstream drum of the conveyor. A scraper extends full width of the cylinder to scrape off the paint on the surface of the cylinder and to collect the scraped-off paint. The lower portion of the cylinder is immersed in a solvent vat.

Abstract: An improved cleaning blade construction (10) for eliminating erosion troughs (6) in the upper surface (15) of a cleaning blade member (14) by introducing pressurized fluid through a pressure manifold chamber (16) formed in the upper surface (15) of the cleaning blade member (14). The pressurized fluid will prevent carryback material (7) from passing through a wear groove (6) formed in the cleaning blade member.

Abstract: Stripping device for cleaning conveyer belts, with a bearing axis for stripping arm that can be mounted on it by holding brackets. An axis-parallel pivot axis for the corresponding stripping arm is arranged above the bearing axis. The stripping arm is also supported against the bearing axis or holding bracket by a spring member. As a result, the stripping arm or its scraping blade is always pressed properly against the conveyer belt to be cleaned, and optimal as well as low-wear cleaning effect is achieved.

Abstract: An apparatus for scraping material from a moving surface. The scraping apparatus is comprised of a scraping device disposed at an angle in relationship to the moving surface such that the scraping device scrapes material from the surface of the moving surface without binding the moving surface. Additionally, the scraping device is comprised of a positioning device for selectively positioning the scraping device in contact and out of contact with the moving surface. Additionally, the positioning device comprises device for regulating the force of the scraping device on the moving surface. Preferably, the position device is comprised of a pneumatically or hydraulically operated piston.

Abstract: In a roller conveyor device, a plurality of rollers (7) are rotatably supported by left and right support walls (16)(16) which extend in the fore and back direction and scrapers (21) are provided on the fore and the back sides of each roller (7) respectively between both the support walls (16)(16). The scraper (21) comprises an upper wall (24a), a left and a right side walls (22b)(24b) and scraper portions (25) projected integrally in the fore and back direction from the upper wall (24a) and adapted to be kept in contact with an upper portion of an outer peripheral surface of each roller (7). Spherical shelly convexed portions (27)(27) are provided in each said side wall (24b), and through-holes (29)(29) for engaging with the respective spherical shelly convexed portions (27)(27) are opened in the inside surfaces of the respective support walls (16)(16).

Abstract: Particulate material from a conveyor belt (12) may be removed by a conveyor belt scraper comprising a flexible wear element (16) for bearing against the working surface of the conveyor belt and a housing (14) shaped and dimensioned for dispensing one end of the wear element against the conveyor belt and for storing the rest of the wear element in the interior (18) of the housing (14). The transverse dimensions (A--A,B--B) of the interior of the housing are less than the length of the wear element (16). The housing is pressure-tight up to a given operating pressure when the wear element is within the housing. The housing (14) is adapted to be filled by a fluid, such as a gas or liquid, which when compressed acts directly on the wear element within the housing to force the wear element against the conveyor belt and to maintain the wear element against the conveyor belt as the element (16) wears.

Abstract: A cleaning arrangement for a conveyor comprises an elongated beam forming a liquid reservoir and being connectable to a source of liquid. The beam is mountable transversely below a conveyor belt. The beam mounts a scraper device and is provided with a plurality of liquid nozzles along the length thereof. The nozzles are in communication with the liquid reservoir. A deflector extends downwardly from the scraper device and is so formed and provided that liquid from the nozzles passes therethrough and on to an adjacent surface of the conveyor belt at a position adjacent to and immediately before or substantially simultaneously with contact between the conveyor belt and the scraper device.

Abstract: An apparatus for scraping conveyor belts having a plurality of resilient scraping blades dependent on each other for lateral support and pivotal stability, but capable of individually flexing away from the belt surface. Each blade is positioned in side-by-side abutting relation across the width of the conveyor belt, and sufficiently thick to prevent blade twisting or turning by providing mutual support for the abutting blade or blades. The blades extend into angled engagement with the belt to shave debris from the belt surface. Each blade is mounted on a single trailing arm which is disposed within a tensioning blade support element to allow independent flexing of the blades away from but not towards the belt surface. The support elements are set in a longitudinal array and mounted for rotation on a shaft positioned transversely and in spaced relation to the belt surface.

Abstract: A trailing arm scraper assembly for a conveyor belt having an arm extending generally in the direction or normal travel of the belt, and a scraper blade mounted at one end of said trailing arm in a home position having a scraping edge forcibly engaging said belt surface. A blade-mounting block at the end of the arm has a stud element releasably mounting said scraper blade for replacement, and affording pivotal movement of said blade about a blade axis substantially parallel to its scraping edge. The scraper blade has resilient abutments to engage the blade-mounting block to yieldingly resist pivotal movement of said blade away from its home position upon encountering an obstruction on the belt surface as it travels past the blade, and to return said blade to its home position upon travel of the obstruction beyond the blade. The abutments allow greater pivotal movement when obstructions are carried by the belt traveling in a direction reverse to its normal travel.

Abstract: A conveyor belt scraper assembly includes a plurality of blade scraper units detachably mounted to a support shaft with a clamping bolt and hold-down bar arrangement. The plural scraper units are preferably molded from resilient material. The one or more scraper units adapted to contact center portions of the conveyor belt is preferably formed of a harder material than the scraper units contacting side portions of the belt. The assembly is driven into and out of scraping contact with the conveyor belt into means of a piston and cylinder arrangement with the cylinder preferably actuated with pressurized water from conventional sources as available in a mining environment. The cylinder is transparent to permit visual monitoring of the location of the piston head. First and second marker tapes fixed to the transparent cylinder provide points of reference indicative of blade wear and the need for replacement when the piston head contacts the second marker.

Abstract: A receiving assembly for a solid waste disposal system is provided. The assembly includes a pit defined by vertical side walls and having an upper opening. An upwardly inclined receiving conveyor is positioned within the pit. An infeed conveyor includes a first end positioned beneath the discharge end of the receiving conveyor such that solid waste material is dropped by the receiving conveyor onto the infeed conveyor. A heavy curtain is suspended above the discharge end of the receiving conveyor for controlling the fall of the solid waste material onto the infeed conveyor. A second curtain is positioned between the conveyors to prevent material from falling therebetween. The infeed conveyor is operated at about twice the speed of the receiving conveyor.

Abstract: A bucket distribution system for receiving products at an infeed station and selectively discharging the products at a plurality of distribution stations. A plurality of buckets travel in a continuous path and each receive a predetermined portion of products at an infeed station. Bucket trip apparatus at each of the discharge stations selectively pivots the buckets in a direction opposite to the direction of bucket travel to cause the buckets to discharge products therein. Feeders at primary distribution stations are adapted to roll in and out of position for servicing. Products may recirculate within the system to thereby reduce the amount of products taken off-line.

Abstract: A conveyor belt cleaner which includes a sleeve mounted over a transversely extending support member one or more cleaner elements with a mounting flange at one end for connection to the sleeve, a channel defined between the sleeve and the mounting flange, and a sliding surface associated with the sleeve formed of a plastic having a high degree of lubricity and a low sliding coefficient of friction, the sliding surface adapted to facilitate removal and replacement of the belt cleaner elements. A loose-running fit between mating parts is also provided.

Abstract: A material-conveying apparatus includes an endless belt supported for travel in a path extending around a pair of rollers. A pair of support plates extend beneath the lateral edges of the belt along an upper run of the belt each of the support plates including an opening extending therethrough which permits material passing incidentally between the belt and the support plate to pass to an area beneath the support plate. A pair of deflection plates are disposed beneath the support plates. The deflection plates each include an upper edge which is disposed beneath and between the lateral edges of the upper run of the belt and extend downward and laterally outward relative to the upper run of the belt to a lower edge which is disposed laterally outward of the edges of the belt, whereby the material passing through the openings is directed by the deflection plates to an area laterally displaced from the lower run of the belt.

Abstract: An apparatus for cleaning an armrest belt conveyor of an escalator. The apparatus permits use of the escalator during cleaning. Preferably, excess cleaner can be scraped off from the conveyor and reused.

Abstract: A heated conveyor belt cleaner is provided including a support shaft positioned adjacent to the belt to be cleaned and generally transverse to the belt's direction of travel, an electric resistance heating element is disposed within the support shaft, a heat conducting medium is disposed between the support shaft and the heating element to effectively conduct heat from said heating element to the support shaft, a mounting sleeve concentrically surrounding the support shaft for mounting a belt scraper element on the support shaft, at least one belt scraper element connected to the mounting sleeve and, through the mounting sleeve, to the support shaft, such that heat generated within the support shaft is communicated from the support shaft through the mounting sleeve to the scraper element to heat the scraper element for effective removal of adherent materials from the conveyer belt.

Abstract: A conveyor belt cleaner adapted for use with a conveyor for product such as broken-up coal. The conveyor comprises a frame, an endless belt, and a generally horizontal roller on the frame and at the discharge end of the conveyor guiding the belt for travel in a forward-moving upper reach and a return reach for conveying product on the upper reach to a discharge end thereof. The belt travels around the roller from the upper to the return reach. The cleaner is adapted for cleaning the outer surface of the belt of particles of product which may otherwise cling to the belt and be carried around thereon past the roller. It comprises a member extending generally horizontally adjacent the portion of the belt travelling around the roller adapted for supporting a mass of particles of product in wiping contact with said portion. The member is spaced from said portion so that the sole contact with said portion is that of the mass of particles. The mass of particles on the member conforms to the contour of said portion.

Abstract: A conveyor is used in combination with a supply of bulk material having an outlet of a predetermined relatively great transverse width to move the material from the outlet to an output location longitudinally and horizontally offset from the outlet in a transport direction. This conveyor has a trough itself having an intake of generally the large transverse width and opening upward at the outlet of the supply for receiving bulk material therefrom, a base extending in the direction, and a pair of side walls extending upward from the base and also extending in the direction. The side walls flare upward away from each other at least at the intake and have upper edges spaced transversely apart at the intake by the transverse width and lower edges spaced transversely apart generally along the full length of the trough by a relatively small transverse width.

Abstract: A conveyor belt cleaner for removing residue from the surface of a conveyor belt is disclosed. The conveyor belt cleaner is radially adjustable through connection with a rotatable support member positioned generally transverse to the direction of conveyor belt travel. The conveyor belt cleaner includes a scraping blade having a curvilinear scraping surface. One edge of the curvilinear scraping surface is in contact with the conveyor belt. The curvilinear scraping surface is configured in a way such that the cleaning angle formed between a first line, tangent to the curvilinear scraping surface and extending through a point where the scraping surface edge is in contact with the conveyor belt, and a second line, either tangent or parallel to the surface of the conveyor belt and extending through the same point where the scraping surface edge contacts the conveyor belt, will remain constant as the conveyor belt cleaner is radially adjusted to compensate for wear to the scraping blade.

Abstract: Particulate material from a conveyor belt may be removed by a conveyor belt scraper comprising a flexible wear element for bearing against the working surface of the conveyor belt and a housing shaped and dimensioned for dispensing one end of the wear element against the conveyor belt and for storing the rest of the wear element in the interior of the housing. The transverse dimensions of the interior of the housing are less than the length of the wear element. The housing is pressure-tight up to a given operating pressure when the wear element is within the housing. The housing is adapted to be filled by a fluid, such as a gas or liquid, which when compressed acts directly on the wear element within the housing to force the wear element against the conveyor belt and to maintain the wear element against the conveyor belt as the wear element wears.

Abstract: A conveyor belt cleaner including an elongated support member extending across but spaced from the conveyor belt comprises a mounting plate including a plurality of anchor apertures at spaced intervals along its length and a corresponding plurality of molded, resilient resin cleaner blade support arms each slotted to receive the mounting plate and each secured on the mounting plate by an anchor lug engaged in an interference fit in one of the anchor apertures. A corresponding plurality of molded, resilient resin cleaner blade units are mounted on the outer ends of the blade support arms; each blade unit has a keyed, slotted interference fit with its support arm. C-shaped metal reinforcements molded into both ends of the blade support arms reinforce the slot mountings.

Abstract: A scraper device to clean conveyor belts includes a bearing axle located below the conveyor belt for a blade holder having spring arms which can be mounted on the axle. The holder carries scraper blades at the end which in a preset angle of pitch are pressed against the conveyor belt. The spring arms comprise parallel guide rods of resilient material. The arms support the blade in a vertical position pressed against the lower segment of the belt. The angle of pitch is, in an advancing position of the scraper blades, maximally up to 10.degree.. In this way, with minimal wear and tear, optimum cleaning effects are achieved which, at the same time, show careful treatment of the belts.

Abstract: A scraper assembly includes a scraper comprising a blade and a damping element to which the blade is fastened, the damping element including a recess, and a base element which has at least a portion that can fit within the recess so as to support the damping element and thus position the scraper in operating position.

Abstract: A conveyor belt comprising an endless belt of a flexible material, and having an upper carrying run and a lower run (1) in which at least one stripper device is provided. The stripper device comprises a frame (2) including a plurality of stripper bars which are mounted on the frame. The stripper bars bear their free edges against the upper face of a run of the conveyor belt, and are formed by a V-shaped bar (4) with relatively short legs (4', 4"). The V-shaped bar has its tip upstream in relation to the direction of movement of the belt. The stripper device also includes a plurality of elongate bars (5, 6) which substantially form extensions of the legs of the V-shaped bar (4). These bars (5, 6) are placed further inwards in relation to the respective legs (4', 4") of the V-shaped bar (4) in such a manner that neighbouring ends of the legs of the V-shaped bar and of the elongate bars overlap.

Abstract: A belt scraper assembly for cleaning material from a conveyor belt (2). The scraper assembly (1) includes scraper elements (6) that are slidably secured to a mounting plate (7). An element may be replaced, without stopping the conveyor or the cleaning action, by inserting a new element (6) while pushing an old one out. The scraper element has a curved shape such that the belt continually sharpens the scraping edge (22) as it travels, rather than rounding it.

Abstract: A cleaning device for a drum being partially looped around by a conveyor belt having an upper and a lower stringer, the cleaning device being arranged in between the upper and lower stringers and comprises a plurality of strippers disposed for abutting the drum; a hydraulic cylinder mounts said strippers and a piston rod mounts carrying a piston, mounts the hydraulic cylinder which reciprocates on the piston; a plurality of downwardly extending soil shifting plates are mounted on the cylinder and move therewith; a dirt catching trough is pivotally mounted underneath the cylinder and stripping bars extend across an open surface of the trough and being in engagement with the soil pushing plates for cleaning these plates upon pivoting of the trough.

Abstract: A conveyor belt cleaner including an elongated mounting member extending across but spaced from the conveyor belt comprises a plurality of support arm anchors affixed to the mounting member at spaced intervals along its length and a corresponding plurality of molded, resilient resin cleaner blade support arms each mounted on an anchor member in a keyed interference fit. There are a corresponding plurality of molded, resilient resin cleaner blade units, each mounted on the outer end of one of the blade support arms, again with a keyed interference fit between each blade unit and its support arm.

Abstract: A scraper device for fitting to an endless conveyor belt or similar device, comprising of a set of scraper elements (1, 1') supported by an elongate carrier member. The scraper elements (1, 1') are mounted on at least one bar-like member (2, 2') which extends parallel to the carrier member and rests on the upper face of the carrier member. The bar like member is fastened relative to the carrier member by detachable fasteners (8, 9; 10, 11, 12) which are mounted at the ends of the bar-like member. Preferably the fasteners are formed by at least one pin (9) projecting from a side edge of the carrier beam (7) and at least one recess formed in the bar-like member (2, 2') in which recess the pin is received and by an upstandiong flange (10) which is provided with an opening. The upstanding flange lies next to a flange formed on the carrier beam which is also provided with an opening. A securing fastener is inserted through the respective coinciding openings in the flanges.

Abstract: An endless chain of link members having oil accumulating cavities disposed therein is circulated in a well at a controlled rate carrying oil to the surface where same is dumped and removed by brush and wipers.

Abstract: A scraper blade for use in cleaning conveyor belts, the blade including one or more laterally extending fracture slits provided in the rear face thereof, extending part way between the rear face and front face, the slits forming predetermined fracture lines to ensure fracture and removal of the tip of the scraping edge after wear to a given depth of the blade has taken place.

Abstract: A conveyor belt cleaning arrangement consisting of a transversely disposed support which includes a plurality of connector slots. One or more elastomeric cleaner blades, either of the arm and blade type, include a locking means to releasably connect the blade to the support without the use of fasteners and secure the blade against lateral motion and hold the blade in position for cleaning the belt.

Abstract: The spacing between laterally closely juxtaposed, parallel, rectilinear rows of wafers filled with a sticky composition is increased by advancing the rows of wafers on a supporting surface in a first direction to entrance portions of guiding passages extending at a second direction angularly diverging from the first direction at a bend. The entrance portions are staggered in the direction of advancement. A rotary disc is associated with the entrance portion of each guiding passage and has an upper portion protruding through a slot in the supporting surface and constituting a guiding face facing the guiding passage, and a shaft is arranged below the supporting surface and rotatably supports the rotary disc. An oiling and/or cleaning device is associated with each rotary disc below the supporting surface for oiling and/or cleaning the guiding face of the rotary disc.

Abstract: A motorized vehicular vacuum street sweeper (2) has a hopper (12) for receiving suctioned debris and includes unloading devices (36) provided by a flexible sheet-like wrapper (38) in the hopper forming a receptacle cavity (76). The wrapper is flexed by actuation devices (74) to shrink the cavity and expel debris through an exit door (40) in the hopper.

Abstract: A conveyor belt cleaning arrangement consisting of a transversely disposed support which includes a plurality of connector slots. One or more elastomeric cleaner blades, either of the doctor blade type or the arm and blade type, include a locking device to releasably connect the blade to the support without the use of fasteners and secure the blade against lateral motion and hold the blade in position for cleaning the belt.

Abstract: A chain conveyor in which two chains are connected together by scrapers and circulate in a casing, which are guided around rollers. In the direction of movement of the chain, in front of and above the entry of the chain into a roller, a shaped component is provided. The latter penetrates into the roller over a portion of the roller circumference. On its side remote from the roller, the shaped component is equipped with a deflector surface pointing towards the interior of the casing, the front edge of which surface is aligned with the shaped component.

Abstract: Chairlift or gondola lift with a carriage supporting a gondola or a chair and having a detachable grip for coupling on a continuously moving cable. In the terminals the carriage is uncoupled from the cable and it runs on a transfer rail. This transfer rail is equipped with friction drive wheels disposed along the carriage travel path for engaging the friction face of a running plate rigidly secured to the carriage so as to brake, accelerate or drive the carriage on the rail. During the night or bad weather periods a cover plate covers the friction face of the carriages disposed on the line and this cover plate is raised away in the terminals to clear the friction face. For removing the snow or ice which covers the friction face and hinders the correct friction drive of the carriage a brushing or rubbing device may be disposed along the carriage travel path so as to brush the friction face.

Abstract: A gang conveyor drive mount for a frame base comprising in combination a pair of rails secureable to the frame base, and a motor gear box assembly attached to the rails. A drive shaft engages the gear box which is mechanically connected to the motor. At least one conveyor is slidably mounted along the drive shaft and rails and extends over the frame base such that the results of work fall on the conveyor in order to be carried away to a storage or use area. At least one bracket is slidably mounted along the pair of rails, and at least one bearing is fixed to the bracket and slidably mounted along the drive shaft. The conveyor and the combined bracket-bearing are adapted in operation of the invention to be slidably adjusted along the drive shaft and the rails in order that the gang conveyor drive mount can be mounted on any given frame base. A method for transporting the results of work comprises engaging the drive shaft to a motor gear box assembly, and securing the motor gear box assembly to the rails.

Abstract: A forage accumulator box has an upwardly and forwardly inclined bottom wall on which a main conveyor is situated for moving material upwardly and forwardly in the longitudinal direction of travel of the implement for discharge onto a cross conveyor which operates perpendicular to the direction of travel for moving the material outwardly to an elevated discharge chute which is hingedly supported for enabling passage between narrow passes such as bridges and the like.

Abstract: Disclosed are two types of track sections respectively having link assemblies interconnected by pivot joints and by resilient flexors. In both types of track sections a sprocket-engaging portion is provided for being engaged by teeth of a track drive sprocket, and a receptacle-cleaning portion is provided for entering receptacles defined by adjacent ones of the sprocket teeth and includes beveled or wedge-shaped ribs for forcing material from the receptacles. The sprocket-engaging portions of adjacent track sections are spaced apart by a distance at least approximating twice the pitch of the sprocket whereby an unused receptacle exists between each adjacent pair of sprocket-engaging portions which is meshed with the sprocket, and the receptacle-cleaning portions are located so as to enter the unused receptacles.

Abstract: A machine frame for a scraper-chain conveyor employs a housing or `plough box` containing a chain wheel for driving a haulage chain. A stripper device is provided in the housing to separate the chain from the chain wheel. The stripper device is composed of a one-piece shaped element with an arcuate blade projecting into the chain wheel. The element is fitted to a mounting flange of the housing with a single upstanding bolt-and-nut and a separate complementary locking member. The element, the locking member and the flange have shape-locking interengaging projections and recesses. The device can be positionally inverted.

Abstract: A mounting ring carried by a truck frame supports a swingably positionable mixing and delivery trough by which concrete ingredients are mixed and poured at a site. A catch basin is carried by the mounting ring and provides both nozzles and scraper means serving to purge the belt surface of particles. Barriers at the basin sides laterally confine the purged particles. Positionable scrapers carried by the catch basin are swingable to an inoperable rearward position to permit access to the catch basin for periodic cleaning. Water and particulate are removed from the belt surface to enhance belt life and thence are routed from the catch basin back into the normal flow of concrete ingredients and into the delivery trough. Nozzle sprays, in addition to belt washing, may provide the total water required for the concrete mix.

Abstract: An apparatus for the aerobic decomposition of garbage, sludge, and similar organic waste materials having a reaction container (10) with vertically descending walls for the material to be decomposed, a discharge opening (12) extending over the entire cross section of the container (10), discharge elements (14) extending over the entire area of the discharge opening, and a removal device below the opening extending over the entire area of the discharge opening. A bi-directionally driven conveyor belt (16) transports the material to be removed from the discharge opening (12) into a first receptacle (22) which receives the material that has not been adequately purified or a second receptacle (24) for purified material. The conveyor belt (16) is preferably provided with cleansing devices (26).

Abstract: A conveyor belt cleaner mounted on a transverse support member including an arm extending from a mounting bracket and a belt cleaner blade secured on the arm. A positioning arrangement is provided between the arm and the cleaner blade to allow the blade to rotate about the central axis of the arm within predetermined limits in either direction so as to allow the scraping edge of the cleaner blade to align with the surface of the conveyor belt being cleaned. A nut and a resilient washer are provided to secure the blade against a collar. An alternative securement includes a pin-and-slot connection which allows the same rotative action of the blade relative to the arm and having multiple seals against the entrance of dirt into the connection.